# Book Review : Principles of Electromagnetics by Sadiku

Hi GATE Aspirants, We recently got queries on How is the book **“Principles of Electromagnetics” **by *Matthew N.O. Sadiku *and How to set strategy for Electromagnetics Subject for GATE 2019.

And here I am with the Book Review of **“Principles of Electromagnetics” **. The author of the book has written more than a hundred professional papers and fifteen books. The book is published by Oxford University Press and available as International student edition in Indian Market.

This book covers the subject Electromagnetic Theory (EMT) in detail. It covers most of the topics of EMT in depth using examples and exercises. This is a complete book for EMT and covers most of the topics related to it and will help you in scoring a good rank in GATE Exam.

# How is Principles of Electromagnetics Book for GATE 2019 Preparation.

**Contents Covered in the Book:**

- Coordinate Systems and Transformation
- Vector Calculus
- Electrostatic fields
- Electric Fields in Material space
- Electrostatic Boundary-value problems
- Magnetostatic Fields
- Magnetic Forces, Materials, and Devices
- Maxwell’s Equations
- Electromagnetic Wave Propagation
- Transmission Lines
- Waveguides
- Antennas
- Numerical Methods

Appendix of this book contains all the mathematics involved in the book such as Vector Algebra, Mathematical Formulas etc. Answers to the exercises are also given at the back side in the appendix.

** Prerequisite :**When it comes to the Prerequistes you just need the basic understanding of vectors algebra and coordinate system is needed and a brush up of Electromagnetics from class 12

^{th}NCERT will be good (not necessary) if the reader needs a better understanding. No compulsory pre-requisites needed.

** #Tip: **Don’t skip or procrastinate doing numerical and mathematical proofs throughout the book. They are must and develops a conceptual base of the subject.

** Print Quality : **Book is printed in a quite interactive way. Though the print is not colored, the images and diagrams are printed in good quality. As the book is not monotonous in nature, so it can be read quite easily.

** Detailing : **This book has covered almost all topics from the subject Electromagnetics and can be a one-stop solution if utilized exhaustively i.e., with examples and exercises:

- All the coordinate systems (Cartesian, Cylindrical, and Spherical) are quite nicely explained in depth using 3D example. Vector Calculus explains the concept of Gradient, Divergence and Curl. And also the difference between the three of them is nicely covered.
- Electrostatics is dealt as a generalized concept with the use vectors and all coordinate systems. A better understanding can be developed in using 1
^{st}and 2^{nd}Maxwell’s Equation, which is kind of advanced version of what we study in 12^{th}standard. - Electric Fields in Material Space chapter explains Electric field concept, Polarization and Boundary conditions effectively. In next chapter Electrostatic boundaries are covered in depth with poisons, Laplace and uniqueness theorem. Resistances and capacitance problems in different condition are also covered.
- Magneto-statics and Magnetic field concept is covered with 3
^{rd}and 4^{th}Maxwell’s Equation. Boundary condition and effect of Magnetic force is also present. Coverage of Magnetic Energy and circuits is unique in this book. - Electromagnetic Wave propagation is covered in quite a depth with all the points intact.
- Transmission lines, their utility and how they are different from the wave propagation in unbounded media is also explained in this book. The requirement here is to understand the difference in approach while studying Transmission lines (a guided media for wave propagation). Smith Chart is also covered in detail, supporting it.
- Waveguide wave propagation in rectangular waveguides is covered in depth, with an explanation of different modes of propagation. Optical fiber propagation is also given as an application note with waveguide propagation.
- A brief chapter on antennas is also there in this book but to get a better understanding of the topic to refer “Antenna Theory- Analysis and Design” by Constantine A. Balanis.
- Most of the concept in EMT requires the use of differential equation and that part is covered with at most care so that mathematics of EMT also acts as helping tool, not as a problem to the student.
- A generalized form of Maxwell’s equation in its final form is covered separately as a chapter, which helps us to distinguish time-varying nature of electric and magnetic fields from static fields.

** Examples :** Solved Examples shows how to solve question using these coordinate Systems and builds the important foundation for chapters to come. To better understand Electromagnetic Wave propagation, I would recommend you to solve examples and exercise problems. As this chapter needs a better understanding ability with a persistent approach.

** Exercises : **Solved example gives a rough idea but to get a grip over EMT, solve exercises of Vector Calculus. Questions in exercises are not lengthy and are beneficial to develop command over Electromagnetic theory. Exercises are sufficient in themselves for this purpose. There are few objective questions given at the end of every chapter to know the objective approach related to that chapter or even particular topics. Extra added fact-based information related to chapter is given at the start of every chapter.

** Drawbacks : **Few drawbacks of this book are:

- There is only a brief chapter on antennas so the reader has to go for some other book, to understand it completely.
- If solved examples are not done while reading the chapter, the reader may not be able to develop a good understanding of the topic.
- Exercises of above-mentioned topics are must to get a grip, as the text is not enough to get a numerical approach.

__Overall Experience__ :

This book is complete in itself for a UG level course on Electromagnetics. Few things as mentioned in “Detailing” are covered in a way, which can’t be found in other books with similar contents. This book also provides a content CD which can also be utilized to gain different, sometimes better representation of concepts used. If the book is completed with examples and exercises it gives you more than sufficient knowledge and numerical understanding of the topics.

So here was my review for the book – “Principles of Electromagnetics” by by *Matthew N.O. Sadiku. *If you think I missed out something then you can mention in the comment section below. Also if you want me to provide a review on any other book then again you can put your suggestions in the comment section below.

Thanks